# Changes in this release:* Tabs! Enabled by default. Use Settings/Options... menu to go back to the old UI* support table of contents and links in ebook UI* add support for PalmDoc ebooks* add support for displaying CB7 and CBT comic books (in addition to CBZ and CBR)* add support for LZMA and PPMd compression in CBZ comic books* allow saving Comic Book files as PDF* swapped keybindings:- F11 : Fullscreen mode (still also Ctrl+Shift+L)- F5 : Presentation mode (also Shift+F11, still also Ctrl+L)* added a document measurement UI. Press 'm' to start. Keep pressing 'm' to change measurement units* new advanced settings: FullPathInTitle, UseSysColors (no longer exposed through the Options dialog), UseTabs* replaced non-free UnRAR with a free RAR extraction library. If some CBR files fail to open for you, download unrar.dll from http://www.rarlab.com/rar_add.htm and place it alongside SumatraPDF.exe* deprecated browser plugin. We keep it if was installed in earlier version